72 ILLINOIS BIOLOGICAL MONOGRAPHS [310 



clumps of protoplasm along their length, which are connected by thin 

 hyaline filaments of ectoplasm. Differentiation of protoplasm is usually 

 observable at the anterior region. Dimensions: length, excluding tail, 

 12 to \Sn, breadth 10 to 20m, tail up to 60ju. Disporous. 



Spore: Wide, short and slightly compressed dorso-ventrally, with very 

 long fine lateral filaments. Polar capsules spherical. Polar filament 

 invisible in vivo. Dimensions: breadth 40 to 50/x, sutural diameter 

 7 to 8/i, diameter of polar capsule 3 to 4/i, length of polar filament 70jw, 

 length of lateral filaments 250 to 300/i. 



CERATOMYXA sp. Georgevitch 

 1916 Ceratomyxa sp. Georgevitch 1916a : 3 



Habitat: Gall-bladder of Muraena sp.; Monaco (May). 

 Vegetative form: No description. 

 Spore: No description. No figure. 



CERATOMYXA CORIS Georgevitch 

 [Fig. 48] 



1916 Ceratomyxa coris Georgevitch 1916a : 4-5 



1917 Ceratomyxa coris Georgevitch 1917a : 1-20 



Habitat: Gall-bladder of Coris Julius, C. giofredi; Villefranche (March, 

 June). 



Vegetative form: Various forms, club-shape, spherical or elongated, 

 with lobose or filiform pseudopodia. Disporous and rarely Polysporous. 



Spore: More or less ellipsoidal. Lateral prolongations of the shell- 

 valves short and truncate. Sutural line straight. Sporoplasm, elongate, 

 rounded, elliptical, fills a part of the extracapsular cavity of the spore. 

 Polar capsules rounded, almost spherical, not converging. Dimensions 

 not given. 



Remarks: Georgevitch observed (1917: Fig. 30) that spores of Glugea 

 marionis occurred in disporous trophozoite of Ceratomyxa coris, which he 

 thought to have happened accidentally by plasmogamy of these two Cnido- 

 sporidia. The above mentioned figure, however, strongly suggests that 

 G. marionis may be leading parasitic life in the trophozoite of C. coris. 



CERATOMYXA HEROUARDI Georgevitch 



[Fig. 49] 



1913 Leptotheca (?) sp. Jameson 1913 : 2 



1916 Ceratomyxa herouardi Georgevitch 1916a : 5-8 



1916 Ceratomyxa herouardi Georgevitch 1916b : 717-19, 983-985 



1917 Ceratomyxa herouardi Georgevitch 1917 : 375-399 



Habitat: Gall-bladder of Box Salpa L.; Monaco (May). 



